Ibrahim, Usman Muhammad, Suleiman Maikudi, Auwal Musa, J. Mohammed, and Faiza Ahmed. 2025. “Band-Gap, Urbach’s Energy Tail and Magnetic Analysis of Cs3+-Ni2+ Doped Zinc Spinel Ferrites Nanoparticles”. Nigerian Journal of Physics 34 (2): 218-24. https://doi.org/10.62292/10.62292/njp.v34i2.2025.444.